Invalid condition format must be condition=value – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.8-8.9

Briefly, this error occurs when the condition format in Elasticsearch is incorrect. The system expects a ‘condition=value’ format, but it received an empty dictionary ‘{}’. To resolve this issue, you should ensure that the condition is correctly formatted. Check your query or configuration and replace the ‘{}’ with a valid ‘condition=value’ pair. Also, ensure that the condition and value are appropriate for the operation you are trying to perform.

This guide will help you check for common problems that cause the log ” Invalid condition: ‘{}’; format must be ‘condition=value’ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: admin, indices.

Log Context

Log “Invalid condition: ‘{}’; format must be ‘condition=value'” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 String[] sConditions = input.split(";");
 RolloverConfiguration.ValueParser valueParser = new RolloverConfiguration.ValueParser();
 for (String sCondition : sConditions) {
 String[] keyValue = sCondition.split("=");
 if (keyValue.length != 2) {
 throw new SettingsException("Invalid condition: '{}'; format must be 'condition=value'"; sCondition);
 var condition = keyValue[0];
 var value = keyValue[1];
 if (MaxSizeCondition.NAME.equals(condition)) {
 valueParser.addMaxIndexSizeCondition(value; setting);


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